I think my hangup on the issue is a matter of intention and primary purpose. A car’s primary purpose is to transport. A screwdrivers primary purpose is to affix screws. A computer has a wide, unspecified set of applications such that there is no implied purpose outside of personal or economic enrichment. I do not believe that the manufacturers of these products should be held accountable for their products misuse.
However, I’m quite concerned about firearms being used for their primary purpose: killing people. To the manufacturers and legislators credit, as someone else mentioned in this thread, there are at least meticulous safety standards to greatly limit the likelihood of guns killing people OUTSIDE of the users’ intended targets.