Utah is the next best example and Salt Lake City and it's few liberal suburbs simply cannot overtake Utah, Davis, Weber, and Morgan counties. If Utah becomes blue, it'll be because the Mormon suburbs changed, not because Salt Lake City grew to a huge size.
Yes. Aside from 3rd parties splitting the vote (and we all know it's just specifically because of Trump himself, not because they've grown disenchanted from the GOP), unless the Mormons shift their voting patterns, I don't see UT becoming a blue or even swing state for now.