Are you ok with calling men “males”?

People forget that there are also girls, teenagers and possibly other variants you may want to specify (plus all the male ones etc.).

By using female/male you cover those bases.

Besides, have you never seen internet posts like in AITA or such using F/M?

Never mind all the professional language (e.g. “military age male”).

Just, come on. Getting insulted over bullshit.