The entire political establishment is in agreement on the need to enforce the pro-corporate policy of “forever COVID,” in which the working class and broad layers of society as a whole are condemned to unending waves of mass infection, death and debilitation with Long COVID.
Read the links. The theory that diseases just get weaker over time is false, whatever your intuition is. Just because some diseases happen to have gotten less lethal over time doesn’t mean that’s how diseases work in general. Others have gotten more lethal.
And it’s not true that COVID has gotten weaker over time. Most of us have better immune responses now that they’ve gone through many rounds of vaccines and/or infections, but the disease isn’t itself weaker.