Look, let's just get down to basics. Steve Rogers without drugs in his system was what? A guy who looked like a strong wind would blow him over, who got his kicks starting fights in movie theaters, and continually falsified his name on legal documents in order to join an army he physically wasn't qualified to be a part of, which had he been allowed to join would've inevitably required his allies to pick up his considerable slack, placing their lives on the line for his incompetence.
What was Tony Stark without the Iron Man Armor? Genius, billionare, playboy, philanthropist, who successfully took a company his father started to new heights in weapons development, allowing an untold number of American soldiers to survive and come home from the battlefield. I know that some of you Cap fans might not like that, because Lord knows that Old Man Rogers doesn't believe in "coming home" or putting an end to wars. No, he's rather soldiers just fight forever and never get to see their loved ones again. Screw developing ways to solve conflicts. That man would have you fighting an eternal war all for the sake of his PTSD. Dude's probably going to snap and shoot up a coffee shop full of innocent Wakandians.
The shield he uses? Made by Howard Stark. The home he lives in? Avengers Tower, owned by Tony Stark, Avengers Bunker, owned by Tony Stark, Wakanda, owned by Black Panther and his people. The aircraft and motor bikes he uses? Provided by Tony Stark. The medical supplies, lodgings for his team, that nice ice capsule his old friend Bucky's in? All provided by somebody else.
This is a grown *** man without a job, because he destroyed SHIELD, the world's premier peacekeeping organization, and who therefore likely doesn't have $5 to his name to buy you a cup of cofee and a sandwich if you were starving on the street.
But hey, if you're in prison he'll break you out...After getting you thrown in there in the first place through guilt tripping you into abandoning your wife and children and then abandoning you in the middle of a battle to run off with the friend who he let fall off a speeding train a few decades back
Steve Rogers is the greatest villain of this age and y'all want this maniac running loose? He'd probably nuke a city if it meant saving Bucky.