I watched this again this weekend. I think Age of Ultron has held up better.
As far as “The Fight”, the only reason anyone takes Stark’s side is because they like Rogers better. If it was Hawkeye saying “I can’t handle these RULES, man” and Cap and Iron Man saying “We need to be accountable” then they’d be all for signing the Accords. Oh and people will (and should) disagree with anything Ross says.
OTOH, blaming the Washington, DC disaster on the Avengers is preposterous. Sokovia? Ehhhh, probably closer.