1. You don't get cold in the summer. Cold is seasonal. Covid is all year around.
2. You don't get long cold but you do get long covid.
3. Cold rarely causes pneumonia but covid does cause pneumonia in many patients.
4. Covid is many times more contagious than cold.
5. Covid kills ten times more in elderly than cold does.
Covid isn't cold and can't be treated as such. Living with covid means that you need to accept a 15% rise in mortality. If you are willing to accept the excess deaths, you still need to deal with constantly pressure from overwhelmed hospitals and a major rise in absentees due to covid that result in supplies chain breakdown. In the end of the day, you are not sure that you would come out ahead by living with covid but you are sure to have many more deaths. It is not an easy choice but don't try to claim living with covid would solve all the problems and help the economy.
The date says otherwise. Many Western nations are already in recession. Australia needs to restart payment to sick leaves due to so many people have gotten covid. Japan is trying to contain a covid outbreak soon would overwhelm its hospitals. Taiwan is unable to stamp out covid and even lower the infections after months. The truth is living with covid just make you feel better but covid is still rattled and disrupted the economy and causing mayhem.
1. You do get the cold in the summer. Maybe you're thinking of the flu? There's some seasonality to it, but clearly COVID also has its biggest spike in winters so it also has some seasonality to it.
2. That's probably true, though I'm still a bit skeptical about long COVID due to the very imprecise way it's defined and investigated. The reported prevalence seems rather high, but I've yet to seen one in all my patients and colleagues or friends, and the vast majority of them have had COVID.
3. COVID also rarely cause pneumonia in the vaccinated, and I'm seeing it less and less.
4. It does appear that COVID is more contagious than almost any respiratory illness I know of, but perhaps that's because it's a novel illness.
5. That's probably ballpark true, as the elderly don't have a less response to the vaccine as well. With that said, given how contagious COVID has gotten, there's no way you can get around this. Vaccines, while less effective in the elderly, will reduce risk to an extent that the risk of lockdowns on mortality may be higher.
What I'm trying to say is that the answer is not so clear. I do favor living with COVID, not because the risk/benefit ratio for mortality/economy benefits is definitively better, but because life is more predictable that way. A relatively constant stream of COVID infections, the far bigger majority of which are now mild due to vaccines, makes life a bit more predictable than alternating full openings and strict lockdowns.
You dismiss it as "living with covid just make you feel better", but I wouldn't underestimate the benefit of feeling better, even if objectively nothing really is better. People are more comfortable with a more predictable life, they feel more secure when they can plan ahead. A less anxious population can be a great positive, even if the overall mortality rate or GDP growth doesn't change.