No, you should not apologize
No, you should not apologize for your beliefs. As an apologist, you are simply defending your beliefs in a rational and logical way. You are not trying to force your beliefs on others, but simply to explain why you believe what you do. If someone is offended by your beliefs, that is their problem, not yours. You have the right to believe whatever you want, and you should not be ashamed of your beliefs.
In fact, it is important to stand up for what you believe in. If you believe that something is right, then you should not be afraid to say so. Apologizing for your beliefs is a sign of weakness, and it will only make people less likely to respect you.
So, if you are an apologist, be proud of your beliefs and stand up for them. Do not apologize for what you believe in, and do not let anyone make you feel ashamed of your faith.