It comes from Christianity for sure but a Western youth culture interpretation of it, heavily influenced by foreign actors from the USSR (see the Mitrokhin papers proving their psyop influence campaigns on Western academia) and Maoist China (via the Gang of Four campaign to "Destroy the Four Olds" of China's traditional heritage, which was hugely influential in Western youth culture). The West used to be acknowledged as a promoter of freedom before the 1960s and 1970s. We should expect that "dharmic" traditions will be twisted in a similar way by future radical movements, such as the "Pure Land" buddhist movement of Japan.