It's rather alarming that we have people like that.
If you look up and understand the Carbon cycle of the planet, it becomes very easy to see why taking carbon that has been out of the carbon cycle for millions of years and then re-introducing is a bad idea.
Do you think this graph can just keep rising to infinity and it will have zero effect?
Beside's why would you be opposed to moving away from fossil fuels?
Even if you didn't believe in Climate change, the pollution and smog caused by burning oil, gas, coal etc are very real and very measurable in many cities.
We are a time where technology has evolved to move us past fossil fuels.
Opposing it is like those people who rioted over the printing press machine coming out.
You will be on the wrong side of history.