No it isn't
Mr Roper, a man looking at a woman isn't a hate crime. Get over yourself.
Looking at people when they don't want you to is like reading their book over their shoulder or helping themselves to their crisps. There's an unspoken rule about staying in certain confines when in a crowded social space.
A man persistently staring in a way that makes a woman (or a man or a child) feel unsafe and targeted is a creep and could and probably should be seen a stalker. Or possibly as sociopath. Neither is welcome in a crowded tube carriage.