I think of this as analogous to the movement to get women to wear pants. It’s not that we wanted them to present as masculine; it’s that we wanted pants to stop being masculine and start being just clothes. Basically all masculine coded attire became androgynous, but almost no feminine code attire did.
It’s not like skirts are inherently feminine either. There are plenty of examples across cultures and time of it being perfectly normal for men to wear them.
I think it’s even simpler than that. A lot of the people conflating anti-Israel sentiment with anti Jewish sentiment are ethno nationalists. On the Israeli side, those would be Jewish nationalists; but here in the US, the sentiment is disproportionately coming from Christian nationalists. Incidentally, these people also tend to be the same people who conflate anti-current-governing-coalition-and-policy-of-Isreal sentiment with anti Israel sentiment more generally, because that conflation is part of fascist ideology, and ethno nationalism tends to be a fascist ideology.
The reason we see pro-Zionist media ferment anti semitism is simply that the Zionist movement is ideologically aligned with most anti-semetic movements.
Women’s skirts work just fine for men. You just need to translate between sizing scale, which is not that difficult (although it is annoying unless you are in person and can actually try things on).
Crop tops are much more difficult to buy, as a lot of those really look bad if you don’t have breasts.