I prefer a more scientific approach to covid rather than a paranoid one

 Here's the point. If you want to still be alive in 2030 if you don't get vaccinated you. might not be.

This is a given. This is a scientific approach to this.

Did I want an MRNA vaccination?

No. But I still want to be alive still in 2030 and the MRNA vaccination might better guarantee that than anything else scientific would according to my research that I have conducted so far.

It's quite simple to me really. Do you want to still be alive in 2030?

If you don't want to be alive still in 2030 don't get vaccinated and likely you won't be. 

But, the amount of people not getting vaccinated worldwide now could also create a variant that will cause human extinction.

However, the other side of this is that most pandemics don't kill more than 95% of any given population.

So, what is 95% of 8 billion people?

7,600,000,000

or 7 billion 600 million people could die from a future variant of this covid-19.

This is something that could also happen whether or not anyone gets vaccinated.

And all this is scientific fact too.

In other words even if this pandemic kills eventually 7,600,000,000 people there still likely would still be 400 million  people spread all around the world who would still be alive in some form. However, civilization as we now know it likely would not exist the way it does now.

If you can do ratios you could figure out how many people might still be alive in your country if this happens between now and 2030.

In other words the U.S. is 4.25% of the world's population.

If we say that 400 million people survived then we would be 4.25% of those people

There would be 17 million Americans. Maybe the same population as when 1776 happened?

Nope. That was only 2.5 million people in the U.S. in 1776.