A cow and a pig are both mammals but not everything that is true for one is true for the other as an example pigs do not chew their cud.
The fact that other viruses are corona shaped does not mean that they are the same virus.
Your statement that "covid has been around for twenty years" is like suggesting that cows and pigs are the same. Covid-19 is not the same virus as other corona shaped viruses. Covid-19 has been around for less than two years.
If what you said was true then why were those politicians whom you admire caught unprepared. You are actually insulting those you support when you suggest that they did not know in 2017 that this virus was already around. You make it sound like they are incompetent and that they lack vigilance.