I think a more accurate interpretation is needed. We had been engaged in the slave trade since Elizabeth 1's reign, and only exceeded by Portugal in the number of slaves transported from Africa, a trade that enriched many in Britain, who were then amply compensated when it ended.
As for the battle of Navarino, our involvement in the Greek War of Independence was hardly for humanitarian reasons. It was prompted by concern that Russia might have undue influence over a newly independent Greece. Hence our co-operation with the French to secure Russia's agreement to a tri-lateral approach. The fleet of which Codrington was commander was of course comprised of all three nations' ships and with the superior firepower and gunnery of the allies the battle was an extremely one sided affair. Even then, the final withdrawal of Ottoman forces from Greece was only achieved after more military action by Russia and France.
I think you'll find there quite a few things back in Liz's 1's time that might not be acceptable by our morally superior views of today. Back then we would torture and burn people at the stake because of their religion. Now days we bomb them from the air because of their religion. We kill them by the millions and we make the elite that run the Military/industrial complex £billions.....So yes I agree with you us mass murders (were all guilty) make more money than the slavers ever did and its socially acceptable in the 21st century..... Still as long as we make sure the odd Marine gets charged with murder out in Afghanistan, we express how offended we are on social media about Trump, or we make it clear we 'uncomfortable' with our colonial history. Then we have nothing to be ashamed of, in fact we can even smugly point fingers at those who don't join in such activity and cleanse ourselves from any responsibility.
By the way you didn't give an answer to the Irish question.
You haven't mentioned the British navy ending cross Atlantic slavery.....Understandable if your selective British history shamer.
Your knowledge of Navarino is either floored, probably by some left wing history changer, or deliberately miss leading.
The Greeks had lost their battle for independence and the Ottomans had decided to wipe out vast areas of any Greeks and then populate it with muslims. They were busy murdering raping and burning any crops to starve the locals.
There was an outcry in places like London and Paris as this was being done to Christians. So the mission was for humanitarian reasons. But back then things were the same as they are today, as in the people in charge have a bigger plan. So despite our coalition with others we were actually worried that a total defeat on the Ottomans could mean the Russians might march into Turkey rather than Greece.
I believe we only had about 25 ships to their 75. They had shore batteries and smaller fire ships and the wind in their favour. So just like your false claim that the Falklands war was a turkey shoot neither was this. We had even been nice and friendly and sent peace negotiators on board their flag ship. The Turks treated them like Leeds fans, slit their throats and chucked them overboard. Then opened fire from the shore batteries and set fire ships towards the fleet.
Of course back then Codrington didn't have to wait for some pointless UN directive.....Oh no not only did they fire first, they had fired on the British navy...... five hours later the whole of the Ottoman fleet was either on fire or at the bottom of the sea.
What that meant is that with no navy they couldn't supply their soldiers who were happily committing genocide in the Peloponnese. Yes the French went and rounded them up but they were halve starved and defeated anyway.
Codrington had upset the big boys back in London but was cheered through the streets by masses. Like everyone in Britain I had never heard of Codrington until I went to the Peloponnese, which I would thoroughly recommend. Its half the price of the islands and some lovely laid back places, like Stoupa. They even have English street names as a thank you and are proud of their Independence because that's the place where the uprising began.