None of this is true. Frankly, I'm not even sure what the middle part means...herd immunity is not a "strategy"; it's just a fact. It's like claiming that "gravity" is a "strategy" for landing an airplane.
> So I'm really not even sure where to start
It's always good to start with something that isn't a fabrication and an ad hominem.
Their "Herd Immunity Strategy": Keep the elder parts of the population locked up and let children and younger parts get it without vaccination: https://gbdeclaration.org/
"In October 2020, AIER sponsored the “Great Barrington Declaration,” a controversial statement advocating for a herd immunity strategy in response to the COVID-19 pandemic. The World Health Organization and other health experts have suggested a herd immunity strategy would be “unethical,” dangerous, and deadly."
More info: https://www.desmog.com/american-institute-economic-research/
Again, herd immunity is not a "strategy". It is a fact. Global vaccination is also a "herd immunity strategy", in that it tries to achieve herd immunity in the population.
But now that I've cleared that up, you should also know that's not what the GBD says. Maybe you should actually read it, instead of repeating what other people say about it?
This willingness to rely on hearsay explains a lot why you're eager to dismiss a page full of links to studies (which is honestly the only reason I used the AIER page), instead of, you know, considering that there might be a debate here.
Obviously, it's much easier to pretend that you're right when you impugn any source that disagrees with your opinion, for disagreeing with your opinion.
https://www.nature.com/articles/d41586-021-00728-2
if you are right, fix the Wikipedia entry ;)
Did you check who co-signed it? Mr Banana Rama, Dr Johnny Bananas, Dr Johnny Fartpants, Dr Person Fakename, Harold Shipman, Professor Notaf Uckingclue, and Prof Cominic Dummings.
Also the study your sit you are in good company ...
And does not address any articles published in that year that showed effects. Here's one: https://www.nature.com/articles/s41586-020-2405-7
You can find way more than the "sources" your article cites. AIER is partisan and does not give you "the evidence."