If you're from the UK, you should weaponize hate speech laws against big name anti-Israel libtards.
You could report them for being anti-White but I don't think that would be very successful, since the British establishment is anti-White. I doubt British cops will pay attention even if the lib you're reporting has advocated violence against Whites.
It's a crime to wish for the destruction of Israel, to compare Israelis to nazis, to accuse them of doing a holocaust in Palestine, etc. and libtards routinely do all the above.
Report any you see, the more influential the better;
"this influencer is spreading anti-semitic hate to their huge audience!"Back up their posts with
https://archive.today or
https://archive.org/AFAIK you can report anonymously via the internet. I think this is the correct link, but I can't access it because the UK government blocks non-British IPs:
https://www.report-it.org.uk/reporting_internet_hate_crime