I would like to preface this response by saying that I personally certainly have some bias against the original claim as its creator was siding with RFK Jr., current nominee for United States Secretary of Health and Human Services, who has expressed other medical opinions I disagree with.
The conversation around SSRIs increasing violent tendencies in patients has been going on since the 1980's, and is very complex. Right off the bat, it is true that SSRI pills have labels that warn of increased risk of suicide, but not homicide, according to the list in this FDA article. The larger issue is whether or not this labeling is justified, and therefore whether or not the original statement is misleading through its language. Looking further into this topic, I opened the two articles posted by the same user on Bluesky underneath the original post, here and here. These articles provided some information, but the main takeaway I found is that the scientific community has not reached any type of consensus on this issue. Some research papers, like this one published in the British Medical Journal and this one published by Mary Ann Liebert, Inc., come to the conclusion that the correlation exists, supported by clinical trials. This paper, published in the Journal of Psychiatry and Neuroscience, says that the issue should be looked at from the perspective of wanting to balance anti-depressant treatment so that people are not afraid of participating in it. This National Library of Medicine study outlines a similar idea, while also highlighting that the increased risks are present mainly in adolescents.
Based on the reading I have done, there is a correlation between SSRIs and increased suicidal ideation in adolescents. However, I think it is hard to say that we should stop prescribing them because of this. We do not know how much these medications are lowering suicidal ideation, only that they are, as per this page on SSRIs by the National Health Service in the UK, which states, "It would be too simplistic to say that depression and related mental health conditions are caused by low serotonin levels, but a rise in serotonin levels can improve symptoms and make people more responsive to other types of treatment, such as CBT."
Overall, I believe that the original post is too general in its wording, and is missing important context. I would love more to see feedback on this post as I believe this is a complex issue that may not have one concrete answer.