This is one of the best reasons to learn a second language. Heretical concepts are often wrapped in layers of euphemism. For this reason, heresies tend to have problems crossing language barriers as that structure of euphemisms hasn’t necessarily been developed. One of the properties of the euphemism treadmill is that the mere existence of softer alternatives makes the original seem much worse than it was before.

Speaking another language often exposes you to people expressing taboo (to you as an outsider) concepts in a blunt and direct manner. This may strengthen or weaken the taboo to you, but at least it will make you think.

To give a very mild example, in English it’s taboo to mention someone’s weight. Even if they are a public figure that you will never meet. So we have a structure of euphemisms: “overweight”, “larger”, “plus-sized”, etc. But there are other languages where people literally do call each other fat, to their face, and it is not taboo. As you can imagine, this principle extends to political and social concepts too.