Church: Revolution or Improvement?

Last Saturday (November 16, 2019) Barrack Obama, stated:
“This is still a country that is less revolutionary than it is interested in improvement. They like seeing things improved. But the average American doesn’t think that we have to completely tear down the system and remake it. And I think it’s important for us not to lose sight of that.”
—RealClear Politics

I couldn’t help applying Mr. Obama’s comments to the average Christian in today’s Christian church. Are we church improvers, revolutionaries, both, or other?

And, what would Jesus say about this?

Please comment if you will regarding Christians and the Christian church (no politics please). Thank you.