Late Stage Capitalism

Nothing wrong with supporting Ukraine when it comes to the war itself, but supporting Zelinski beyond that is a bad look since he's displayed significant authoritarian tendencies with actions democratic countries would normally condemn, such as instituting mandatory military service for all men without any exceptions, banning opposition parties under false pretenses and possibly prolonging the war in favor of a costly (not least in terms of human lives) and probably impossible to achieve aim of decisive victory rather than negotiated peace.

Add to that the fact that the NATO presently in a symbiotic propaganda relationship with Zelinski isn't the automatically correct peacekeeping force that it has mostly been portrayed as in Western media, but rather an enforcer of military and economic imperialism that bear some (but of course not the majority, nobody forced Putin to invade) of the blame for starting the war as their broken promises to not expand east was part of the reason why the christofascist dictator wrongly decided that an invasion was justified if not downright necessary.

There's your explanation why having an amicable meeting with Zelinski doesn't gel with being left wing and anticapitalist. It'll probably be hated by most for not painting either side as pure as the driven snow and automatically correct about everything, but that's just how it is 🤷