It's been pointed out before how flawed using the Case Fatality Rate (CFR) is as a comparison between countries, so using that to argue that Covid-19 is more frequently a death sentence here than elsewhere is flawed. Indeed it's also illogical: although there might be reason to expect *some* national variations (eg if a population is older on average, etc), it is unlikely to be so dramatic as the CFR makes out: Covid-19 won't discriminate to that extent in "choosing" whom it kills. And, of course, the other key driver is the decision in how many people you test, and whom you test, and in both of these the UK has focused on the symptomatic or the vulnerable. Naturally that would lead to a high CFR. It's a selection bias, pure and simple.
At the other end of the scale, as best I can tell, the lowest CFR in the world is probably in Singapore, running at about 0.05% currently. This is likely to be due to sheer luck, eg because the infected in Singapore are mostly (a) migrant workers, and (b) young-ish/otherwise fairly healthy -- at this point it's fairly uncontroversial that Covid-19 is a threat mainly to those with other health conditions, and so Singapore's pandemic has so far not been as deadly as elsewhere.
None of this is meant to absolve the UK of blame for its failings, but looking at the CFR as your main indicator for a nation's performance is simply misleading.