Because those people have no poltical education whatsoever
They can't define words like liberalism, capitalism, socialism, communism, shit they can't even define simple concepts like "the state"
All they have is just vague vibes shaped by whatever bullshit the electoral parties of their home country happen to be spitting out at the moment
Liberals don't really have beliefs, they don't believe in history, they don't believe in knowledge, they don't believe in education and it's power of liberation
What they believe in is comfort signaling from state institutions that subscribe to a religious conception of civil governance