Like @iBrian, I jumped to the conclusion that you were following Musk, Trump, Farage et al who have been spouting all manner of nonsense and lies to anyone who will listen. I apologise for making that jump, but it was rather triggered by your "I see that you live in London. Yikes!!! Yes, you are right. Time to leave" comment.Go to Google News. Search for London Antisemitism. Read a half dozen account of different incidents. Then ask yourself, "If I were a Jew, would I stay and allow my family to be threatened by this? My wife? My children?"
And the question of staying or leaving – you'd have to ask Jewish residents.
Golders Green/Hendon is a concentrated Jewish community 5 miles SW of my home, 9 miles NW of Charing Cross (the point from which all distances from London are measured). According to wikipedia, Golders Green is the epicentre of the largest Jewish population in Europe. The Borough of Barnet, to which it, and I, belong, has the highest percentage Jewish population in any Borough of the UK.
Stamford Hill, 5 miles SE, is home to the largest Haredi and Hasidic community in Europe. In the Borough of Hackney, it's the second-largest Jewish population after Barnet.
I don't see either of those emptying out any time soon. Hertsmere is a satellite community NNW of me, in the outer-suburbs, very up-and-coming, and all growing communities.
The Jewish communities are well-embedded in London, the last influx from the 1900-1940s, driven by East European pogroms and the rise of fascism. Stamford Hill is far more isolationist and private – both have Shomrim community response outfits, with uniforms and patrol cars almost indistinguishable from the Metropolitan Police uniforms, and I frankly don't think a Muslim equivalent would be allowed ... I could be wrong.
There is also Hatzola North West (Golders Green) and Hatzola North (Stamford Hill), running ambulance services. Four HNW ambulances were firebombed in March this year, replaced by the UK ambulance service and public donation. It's generally believed the Islamic group claiming the attack are Iranian proxies, and Iran seems to be a main instigator of the more serious attacks.