I'd like to point out some problems regarding your suggestion. ✬

I'd like to point out that this could become a problem in the future. ✬

I'd like to point out this could become a problem in the future. ✬

Let me point out one of the problems. ✬

If you're going to point out Tom's mistakes, at least do it subtly. ✬

Let me point out three mistakes in your article. ✬