It's not that he's more left wing it's that the further right you go the less likely people are to share the neo-con foreign policy worldview. That's why that part of the right spend most of their time ranting about 'globalists' (or Jewish people depending on specific subtype of ideology.) Some of the most nationalistic people you'll meet are from working class towns. They require this mentality in this group so they can make them die for their country. However you'll also find people with the exact opposite view especially with gen x and below.
Tommy Robinson is an older millennial so his life was greatly influenced by the transparency of how stupid the Iraq war was (most millennials have this opinion,) the war in Afghanistan, the idiocy of the Blair/Bush administrations in the US and UK, numerous terrorist attacks and the idiotic reactions to them. Because the system preys on working class boys/men. They're so transparent about it in British Army ad campaigns too. They tried to mix it up in recent years by including other groups they see as dispensable like gamers lol.
While you make pretty speeches
I'm being cut to shreds
You feed me to the lions
A delicate balance
And this just feels like spinning plates
I'm living in cloud cuckoo land
And this just feels like spinning plates
My body is floating down the muddy river
Talk Talk by A Perfect Circle feels somewhat similar in sentiment.
You're waiting
On miracles
We're bleeding out
Thoughts
And prayers
Adorable (Crisis)
Like cake in a crisis
We're bleeding out
Especially this song (and really lots of System of a Down's songs. Very political band):
https://www.youtube.com/watch?v=A1OqtIqzScI
https://www.youtube.com/watch?v=-Tkm_sXA7EA
The cultural backlash and attempt to process all this stuff was enormous. When people point to subcultures for my generation they point to emo (they can't stop criticising non-binary people who they view as a youth subculture by comparing them to the 'millennial emos' newsflash for them. It's actually kind of funny because I barely knew any other alternative people when I was young but anyway.) The largest band people point to is probably My Chemical Romance the band literally formed because of 9/11. Like the singer was in NYC, saw it, and decided to form a band immediately.
And it didn't really start there with 9/11 it did for the Americans. In the 90s you had the British government vs the IRA. You know they were fighting in the capital on the day I was born. And then that also had a huge impact on the culture:
(I like the documentary Hypernormalisation for framing this since the 1970s. That wasn't exactly the central focus of the documentary though.
Kind of a breakdown here)
So yeah he has some stupid opinions on a myriad of cultural issues but he's not part of the elite and he's a millennial so. Shouldn't be surprising lol.
Also this: