Earlier quoted context omitted.
No fly zone seems like an great way of escalating the conflict, with a nuclear power no less.
"No fly zone" doesn't have a side effect of escalation, its entire substance is nothing but escalation. I think people have some rose tinted view of no fly zones as some objective neutral declaration, but that's basically an artifact of how they have been used to market what was essentially heavy US involvement in other wars. Instead of saying "no fly zone", saying "US jets should attack Russian jets" makes for a mor…
Saying "US jets will directly attack and destroy Russian SAM missile batteries several hundred kilometers within Russian soil" gets the picture across better.