"Given that there is insufficient evidence to estimate these contributions to excess mortality, for now we assume that total COVID-19 deaths equal excess mortal

"Given that there is insufficient evidence to estimate these contributions to excess mortality, for now we assume that total COVID-19 deaths equal excess mortality." I think this is the correct way to think about this problem, as it is likely to be an underestimate, rather than an overestimate. In other words, counting suicides probably doesn't matter, as the number is very low. The paper says as much: "The main potential increases in excess mortality due to deferred care and increases in drug overdose and depression are hard to quantify at this point or are of a much smaller magnitude." The paper overall goes into very great detail about what was and wasn't included and why, which is vastly more rigorous than what you seem to be presenting, which is effectively throwing up your hands and saying, "we'll never know!"