Yes, it is extremely difficult to believe that you "
routinely have to hear from left-leaning friends about how
[you and your] family should be killed". It's so comically exaggerated that I must assume you're either trolling or delusional.
Most charitably, my guess is you've developed a persecution complex which has you hearing a comment like (as an example) "the US would be better off if the GOP just disappeared" as "we must murder all conservatives".
Meanwhile, one side of the political spectrum appears more likely to inspire actual politically-motivated violence, and it's not the one you seem to be pointing the finger at:
https://www.pnas.org/doi/10.1073/pnas.2122593119
> In short, our individual-level examination found that among radicalized individuals in the United States, those adhering to a left-wing ideology were markedly less likely to engage in violent ideologically motivated acts when compared to right-wing individuals.
...
> When compared to individuals associated with a right-wing ideology, individuals adhering to a left-wing ideology had 68% lower odds of engaging in violent (vs. nonviolent) radical behavior (b = −1.15, SE = 0.13, odds ratio [OR] = 0.32, P < 0.001). On the other hand, the difference between individuals motivated by Islamist and right-wing causes was not significant (b = 0.05, SE = 0.14, OR = 1.05, P = 0.747). Expressed in terms of predicted probabilities, the probability of left-wing violent attack was 0.33, that of right-wing violent attack was 0.61, and that of Islamist violent attack was 0.62.
Which, of course, is just more data backing up the many many analyses that right-wing violence is by far a greater threat than left-wing violence (this is from 2020):
https://www.csis.org/analysis/escalating-terrorism-problem-u...
> Overall, right-wing terrorists perpetrated the majority—57 percent—of all attacks and plots during this period, compared to 25 percent committed by left-wing terrorists, 15 percent by religious terrorists, 3 percent by ethnonationalists, and 0.7 percent by terrorists with other motives.
...
> Our data suggest that right-wing extremists pose the most significant terrorism threat to the United States, based on annual terrorist events and fatalities.
In fact, it's become institutionalized as this point. A recent poll showed that '30% of Republicans agree with the statement, “Because things have gotten so far off track, true American patriots may have to resort to violence in order to save our country.' Alarming? I'd say so.
https://www.brookings.edu/blog/order-from-chaos/2022/01/05/a...
So, hey, let's pretend for a moment that you are in fact surrounded by crazed lefties that talk to you about exterminating you and your family over your political views. There's one big difference between them and folks on the American right: They're far less likely to actually do anything about it.