“it happened once” is about the dumbest fucking way to make any argument.

OK, I’m sorry. Here’s a couple more times that people decided to force atheism down people’s throats, and they didn’t use pamphlets or buses…

https://en.wikipedia.org/wiki/Cambodian_genocide#Religious_groups

Under the leadership of Pol Pot, who was an ardent Marxist atheist,[163] the Khmer Rouge enforced a policy of state atheism. According to Catherine Wessinger, “Democratic Kampuchea was officially an atheist state, and the persecution of religion by the Khmer Rouge was only matched in severity by the persecution of religion in the communist states of Albania (see Religion in communist Albania) and North Korea (see Freedom of religion in North Korea).”[164] All religions were banned, and the repression of adherents of Islam,[165] Christianity,[166] and Buddhism was extensive. It is estimated that up to 50,000 Buddhist monks were massacred by the Khmer Rouge.

https://en.wikipedia.org/wiki/Religion_in_Albania#Communism

The Agrarian Reform Law of August 1946 nationalized most property of religious institutions, including the estates of monasteries, orders, and dioceses. Many clergy and believers were tried, tortured, and executed. All foreign Catholic priests, monks, and nuns were expelled in 1946.

https://en.wikipedia.org/wiki/Freedom_of_religion_in_North_Korea#Status_of_religious_freedom

Article 256 of North Korea’s criminal law stipulates that anyone who engages in superstitious practices shall be sentenced to a labor discipline camp.[5][6] Articles 23 and 29 of the Reactionary Ideology and Culture Rejection Act explicitly prohibit the dissemination of superstition.[7][8]

…

Well shit, maybe they did use buses. Just not by putting ads on the buses, but by running people over in buses.