That opposing political view: “you cannot live your life. I want to deport, imprison, or execute you.”
First, you are inventing an imaginary, extreme quote to justify actual, physical battery. If we are playing that game, should I take the most unhinged, violent statement made by anyone I believe shares your political alliance and permanently assign it to you?
Second, a random citizen on the street has zero institutional power to deport, imprison, or execute anyone. They are not an imminent threat. The state is the only entity with the power to imprison people, and as we've seen, the UK government is currently using that exact power to arrest 82-year-old pensioners simply for holding Palestine Action placards.
If someone is actively trying to physically harm you, you have every right to self-defense. But claiming that hearing a civilian's political opinion on the street is the equivalent of an impending execution is intellectually dishonest. You are redefining speech as "violence" so you can use actual, physical violence while pretending to be the victim.
By cheering for the violent suppression of political expression, your worldview aligns perfectly with the actual authoritarianism of the current UK government, which is busy crushing dissent to ignore actual victims in Gaza.