Even in a worst case scenario with no vaccination, COVID-19 would kill less than 1% of the world population. So it's a serious public health problem but not an existential risk to human civilization. I certainly encourage everyone to get vaccinated if they can so as to get us to herd immunity faster, but as a practical matter the disease isn't much of an eminent danger to most people who are otherwise in good health.

The potential long term effects of anthropogenic global climate change are more severe. We may see large regions of the world become essentially uninhabitable. That's a far more serious concern than any infectious disease.