Do Brits have the right to protest against Trumps visit

So earlier on today on tv there was a discussion as to whether us Brits had the right to protest Donald Trump’s visit to the uk.

In the discussion it was brought up that he’s visited other European countries and there’s not been protests, uproar regarding his visit and that basically If Americans had no trust or faith in him they wouldn’t have voted for him (words of loose women not mine!)

Now over her in the uk there’s been a massive blow up baby that resembles Trump, police have been stepped up in numbers to protect trump (which may I add will cause increase in taxes!) and some people have even taken the day off work to protest as they’re in disgust that trumps been allowed in Britain.

I personally am not a fan of trump due to the whole immigration situation and separating children from parents(no I haven’t protested as I don’t live in London and do have to work!) I know Trump has upset a lot of his fellow Americans so do us Brits have the right to “interfere” as stated this TV discussion and protest against him being in our country?