The sheer fucking hypocrisy in this is staggering. You demand evidence for why the excess deaths should be assumed to be due to the global pandemic, yet you're assuming that there's some heart-attack epidemic instead.
Nah, bruv.
If you look at
the actual BHF data cited by your source, there are only about 9k heart attack patients per month. That's a
tiny fraction of the 2.1 million hospital visits you quoted. Even if
every single one of those ~5k non-visits during the last 5 weeks ended up dying of a heart-attack, you'd still come nowhere close to the 15k or so excess death unaccounted for.
And yet, even with a lockdown, the more acute the heart-attack, the more likely the patient would be go to the hospital anyway, which means you can't come close to apportioning all non-visits to deaths. The 50% not going are almost certainly the 50% least likely to die.
On top of that, it's
exceedingly likely that many people who might have otherwise come in for a heart-attack treatment might already be dead or admitted to an ICU for COVID-19. That doesn't mean that they're not legitimately COVID-19 patients, though.
Crystal.