I am a bit baffled by your claim of writing to "local MPs". You have one MP, for your constituency. If you write to the MP for a neighbouring constituency you're wasting your time, as they won't respond - if you're lucky, they may forward your letter on to the correct person.
I don't believe that Yaxley-Lennon ('Tommy Robinson') actually gives a f* about sexual abuse - he's just looking for ways to enrich himself - every time he appears in court or goes to prison is just another opportunity to grift from supporters across the world, partially to fund his coke habit (with all its links to exploitation.
I was disgusted to see Elon tweeting about Tommy being held in "solitary confinement". The reason he's segregated from other prisoners is because he asked for this (because they're unlikely to take kindly to having such a racist eejit in their midst).
For anyone who needs further proof that the far right/ EDL is a den of child abusers, I am attaching a list of 100 names of convicted perpetrators (there are likely to be many more who haven't been caught yet)