Opinion on Karl Popper and Falsificationism?

Popper is often celebrated by libs, but he is just a racist western chauvinist (like most of the libs themselves).

Here's a quote from Domenico Losurdo's book, War and Revolution:

An explicit rehabilitation of colonialism is ventured by the theoretician of the 'open society' himself. Popper seems to offer an unequivocally positive assessment of the centuries-long domination of the rest of humanity by the great European and Western powers: 'We freed these states too quickly and too simplistically.'