Man I usually really agree with your takes on this forum, but I feel like you are missing the broader point here.
Most people (maybe not RF, ha) would agree that murder shouldn't be the answer, that it shouldn't be on the table. But the desperation out there is reaching a point where it FEELS like this is the only thing that will get attention, and as easy as it is to say "murder is bad" (wow, hot take), it is because one act of outright violence is very easy to wag your finger at and tut-tut, but it's harder to do that to an entire complex nation-wide care organization with decisions that have assuredly resulted in the death of poorsies to enrich the company and its shareholders. Spreading out the blame doesn't make it less morally reprehensible IMO, but you get into some philosophical arguments there, to be fair.
You say that, well this is a democracy and things should be changeable without murder, but in reality your option is electing one politician over another, both of whom are bought and paid for by different groups (and often the same groups!), then those elected representatives enrich those who really put them in power. Sure you get some grassroots representatives that sneak through sometimes but they are far from the majority, and mainstream media (also owned by the super wealthy) tends to deride them and try to silence their opinions so as to not disrupt the status quo. I have said for many years that historians will agree that Citizens United will be a main inflection point in the downfall of the US as a superpower. Your free speech and mine doesn't mean jack anymore in comparison to the billions that the truly rich can pump into the system to get what they want.
The US has been a system of increasing crony capitalism for decades, but Citizens United marks the descent into oligarchy (Elon Musk, anyone?). So the system you say is available for change is already bought and paid for by the insanely rich. When money is the only thing that talks and the plebs have less money relative to the upper class than ever before in the past, calling your congressperson to say "Hey you know those guys who gave you campaign donations to run your election? Tell them to stop their bad business practices!" just doesn't really carry much weight. The cracks in the façade of America are starting to leak, and this is the downstream consequence of a population that feels increasingly marginalized and taken advantage of despite being the majority. Bread and circuses can only take you so far before revolt is inevitable, "right" or not.