1. Ready availability of guns with almost no checks will always lead to more guns getting into the hands of people who are in no way fit to have them, and that leads to more gun violence and more spree-shootings.
2. The rise of the racist far right and the espousing of supporting extremist rhetoric by mainstream Repugnicans leads to the radicalization of more people who will then be motivated to commit that violence.
3. Mainstream Repugnicans demonize LGBTQ people and espouse hateful rhetoric, instilling fear of "the other" in their supporters. This motivates the crazies on the right to do things that they might no have done before
I have been warning about this for the last few years. The behavior of the Repugnican party is almost indistinguishable from that of a pre-fascist society. This has been repeated over and over in history - Chile under Pinochet, Argentina under Peron and later, Galtieri, Italy under Mussolini, and Nazi Germany under Hitler. They identify a boogeyman and make them into a threat and whip up their base into a frenzy... with political violence such as 1/6, the attempted kidnapping and murder of Gretchen Whitmer and spree shootings that target specific section of the community like Buffalo and Orlando, and synagogue attacks like Pittsburgh the inevitable result
In Chile and Argentina it was socialists (Salvador Allende's followers in Chile and Argentina) who were the boogeyman and they were frequently "disappeared"; in Italy it was communists; in Nazi German, communists, Jews, gays and the disabled Nazi Germany.
In the USA, its the LGBTQ community, Mexicans and to some extent, Jews and Blacks are the targets