On March 15, you stated that you “don’t particularly like [Stephen Christopher Yaxley-Lennon’s, aka Tommy Robinson’s] views on Jews or Zionism”. According to wikipedia, those views are as follows:
You go on in that post to describe yourself as a “national socialist”, and reemphasize your antisemitism on May 31 when, in response to being accused of having “muslim buddies” (presumably a reference to historic tensions between Muslims and Jews), you respond that you “don’t like them either”, i.e. you don’t like Jews and you don’t like Muslims.
Also on May 31, you begin sarcastically endorsing positions you have long opposed, including Zionism.
Shortly after, on June 7, you request that your user name be changed to “Rabbi Shekelstein”. You use your new name like blackface, and post a series of antisemitic parodies of your idea of arch Judaism.
It’s a schtick, it’s boring, it’s intellectually and philosophically lazy, and it’s ad hominem. You deserve your warning.
As for future name changes, they are a privilege and not a right, and you have lost yours.