Your right to enjoyment doesn't trump another's right to life. To say otherwise is barbaric.
It's not really that black and white though. There are plenty of actions the government could take to save lives, for example changing the speed limit to 20 or banning all air pollution. They don't because it would inconvenience too many people or stop them from making a living. Yet at the moment we are stopping children from their right to a decent education, business people from their right to run their business, family life etc.
I was fine with it when it was "3 weeks to flatten the curve", but now it looks like it could go on for years with ever-changing goalposts. The new SA strain may already be resistant to the vaccine. Sure, they could develop another vaccine in 6 weeks, but then what happens to all those people already vaccinated? DO they have to go again? And once they develop an updated vaccine, get it out to a million people, there'll probably be 10 new mutations. This is a virus and the only one we've ever eradicated is smallpox; this might end up being one of those things we can't defeat and just have to accept a certain number of deaths, like drugs or terrorism or flu. We accept flu always mutates and we have a new semi-efficacious vaccine every year, and excess deaths in the tens of thousands. We don't lock down. If this is for decades, we can't live in limbo for that long - eventually we have to just go back to normal and everyone takes the risk.
The idea of "hospitals being overrun should be met with lockdown" should be debated without people being called murderers. In fact I disagree with the entire concept that someone is a murderer for infecting someone - if I went to the office in 2019, I accept the risk someone may have bought flu in, I may have it asymptomatically and may pass it on to someone who passes it to their nan. We all took that risk, yet now we must shut away to eliminate all risk.
I just think the "solution" is far too disproportionate for the problem, especially when the money poured into it could have been used to specifically shield those who want/need shielding.