In the Covid deaths there are an average of four comorbidities, with only 5% of deaths indicated as Covid as the only cause according to the CDC
Well, of course. These sorts of diseases rarely kill young, healthy people. That has nothing to do with anything.
During a regular flu season the people who die aren't generally young and fit, they're people who are already old and vulnerable.
Excess deaths were up in general.
From some causes, but not from others.
https://jamanetwork.com/journals/jama/fullarticle/2778234COVID-19 was the third leading cause of death in 2020, with an estimated 345 323 deaths, and was largely responsible for the substantial increase in total deaths from 2019 to 2020. Substantial increases from 2019 to 2020 also occurred for several other leading causes. Heart disease deaths increased by 4.8%, the largest increase in heart disease deaths since 2012. Increases in deaths also occurred for unintentional injury (11.1%), Alzheimer disease (9.8%), and diabetes (15.4%). Influenza and pneumonia deaths in 2020 increased by 7.5%, although the number of deaths was lower in 2020 than in 2017 and 2018. From 2019 to 2020, deaths due to chronic lower respiratory disease declined by 3.4% and suicide deaths declined by 5.6%.
So, you're basically right BUT the increase in deaths from those other causes nowhere near accounts for the total increase in mortality. Here are some graphs I made from the data in that article.
Fairly significant rise in heart disease, Alzheimer's and diabetes - although I would note that all of those do have a rising trend before that. Some falls in deaths from other things - notably other respiratory diseases which isn't a surprise, the new kid on the block with this sort of thing tends to dominate, but the bottom graph shows the real impact of Covid. Yes there is a slight increase if you ignore the Covid deaths but with them the increase is clear:

That's a lot of motorcycle crashes...
Covid has a 99.7% survival rate
No it doesn't. I can't see your source for some reason but I found this one:
https://fsph.iupui.edu/news-events/news/death-rate-covid-statewide-study.htmlUsing the non-institutionalized population, researchers determined the overall IFR for Indiana to be 0.26%.
So basically they took out all the people in care homes to get that figure. So yes, you take out all the old people who are already ill then the chances of survival are pretty good.
But that's a pretty dishonest way of calculating the fatality rate, you have to consider everyone.