baselessly accusing them of being sex offenders simply because they are trans is hate.
I've never seen this. I've seen discussion of actual transwomen who have been convicted of sex offences, eg Katie Dolatowski. That's fact, not a matter of baseless accusation.
I've seen discussion that allowing men into female single sex spaces increases risk of women being attacked. I've participated in those myself and agree with that view. Given 99% of sex offences are carried out by males, it's not rocket science to see a risk there.
What I haven't seen is anyone accusing a person of being a sex offender 'simply because they are trans'. The posters on FWR are well aware that trans is a broad umbrella and includes, for example, autistic children.
But using dehumanising language talking about floods and parasites and invasions is hate. Spreading false narratives that demonise whole groups of people as criminals and rapists is hate.
I agree that terms such as 'parasites' are dehumanising. I've not often seen posters 'demonise whole groups of people as criminals and rapists', though I have seen a small number of posts that would amount to that and are clearly racist. Those are usually deleted, thankfully.
I have seen discussion of statistics from other European countries that seem to show that certain offences are disproportionately high amongst migrants from some geographical areas. And discussion around cultural differences relating to the treatment and status of women, amongst some people coming from certain parts of the world. Where this is fact, it has to be ok to discuss it. In a democracy, free speech and access to accurate facts and data are vital. It cannot be the case that the potential for increased risk to women should be hushed up and made taboo. Women matter as much as men. Yet I have seen posters try to do that. Discussion should not cross any line into racism, of course.