Has there ever been any protests that have resulted in suicide? [I'm Interested In Human Psychology]

In the 1960's there was a spate of self immolation protests ( people burning themselves to death to protest something ) recently many monks in Tibet have been doing it to protest the persecution Tibetans are facing under the rule of evil communism..

Here is a wiki artical on it..

https://en.wikipedia.org/wiki/Self-immolation

I was going to post a Utube video on it but they are a bit too graphic and traumatic for people who have never witnessed such a thing..

Like in the history of forever or recently?

Yes.
https://en.m.wikipedia.org/wiki/List_of_political_self-immolations

I remember Buddhist monks in Vietnam protesting the war by setting themselves on fire, in the 1960's.

Research the album cover to Rage Against the Machine's eponymous debut album.