If you understand it as a trial where a president who has done something wrong is held accountable according to the law, then no that's idealist nonsense.
If you understand it as a mechanism that allows 50+ senators to replace the president with the VP if they want to, yes.
Bruh dems voted for it. They did what they could with the votes they had at the time. REPUBLICANS stone walled it because it's party over country for them. They probably hoped that almost getting lynched by an angry fucking mob the sitting president refused to call in the National Guard on would get at least enough to flip to convict, but nope, republicans will apparently literally die before they vote for country over party.
The country is 3 corporations in a trenchcoat. If Trump threatened the corporations those same republicans campaigns need to get elected, those republicans would have to either lose their seats or get rid of Trump.
Their role is entirely dependent on maintaining the cult of personality and calling for the blood of those who are accused of dysloyalty.
You're not looking at this from a systemic perspective.
Their role is winning their own elections. Everything else must be secondary, since if it wasn't they'd be replaced by someone else who does.
I'm talking about the people who run the machinery of the evil empire that turns the suffering and continued immiseration of billions into profits for the shareholders of the most destructive companies, I'm not under any impression that these people have morals I can recognize.
Their role is entirely dependant on feeding the cash machine, of which the military industrial complex is a huge part. The cult of personality is just a convenient means to an end. If it's no longer convenient it'll disappear.
Let's assume that happens. What would that do, exactly? Can you think of any precedent where something like that has happened before? What was the net effect?