With respect, I think you ignored the point I'm making for the sake of pushing an agenda. Suicides are deaths of despair. Whether someone ultimately kills themselves with a firearm or a needle is secondary to the policy goal: to attempt to make America better for people to not want to kill themselves (barring an inherent medical issue related to chemical imbalance causing depression).
To put it in perspective, California (a state with notoriously strict gun control) has experienced the highest rate of increase of opioid overdose deaths (see https://www.shadac.org/opioid-epidemic-united-states). More generally, deaths to firearm suicide and deaths of despair occur together in rural communities (see https://www.sciencedirect.com/science/article/abs/pii/S00224...).
Are those "suicides" in the classical sense? No. But they are deaths of despair, and from a public health and policy standpoint, must be approached in a manner similar to suicide.
I don't believe you have even attempted (or acknowledged) an opposing point exists on this topic. Your points amount to banal agenda pushing as opposed to seeking to understand the root causes of many challenges today. This is emblematic of (and partially why) there is such division in the USA today: a lack of willingness to study and understand societal problems, particularly those that are multifaceted and require broader reasoning about the topic.