it implies we took their playbook and did nothing with it

No, it doesn’t.

Were we doing nothing for 4 years?

Not even implied.

This assumes that "Trump leaving office" was a flip of a switch that returned power at all levels.

All levels of what? Government.

Are Pfizer, Moderna and Johnson & Johnson the government?

Nothing you’ve said contradicts the idea that these vaccines have become worse over time.

it implies we took their playbook and did nothing with it

No, it doesn’t.

Were we doing nothing for 4 years?

Not even implies.

This assumes that "Trump leaving office" was a flip of a switch that returned power at all levels.

All levels of what? Government.

Are Pfizer, Moderna and Johnson & Johnson the government?

Nothing you’ve said contradicts the idea that these vaccines have become worse over time.