The misconceptions can not be tackled, I must say because there is no way everyone can accept Bitcoin, it is a digital asset class and majority thought that everything that has to do with online is prone to be scammed, accepting Bitcoin is beyond being convinced by another person rather it has more to do with personal conviction to accept the very potentials that Bitcoin holds, it is a digital world and majority has refused to accept the civilization technology has brought for us, alot doubted the potency of Bitcoin at it's earliest days which they might have regretted today seeing Bitcoin doing well today hence, any one refusing to see the true values of Bitcoin should be left alone why the regrets awaits.
It can't be completely tacked, but it can be reduced by trying to pass the right information all the time to the right people. We can't force people to accept bitcoin, but we can somehow let them know that it's definitely not the way they picture it to be by creating a conducive environment for them to look at it from.
You can do this by creating a counterargument to any reason or example that they give that justifies their claims.
For instance, using the popular saying that the use of crypto currency promotes terrorism funding and every sort of illegal activity, you can give an instance of where fiats have been used for such cases, letting them know that crypto is not the problem but the people using it are.