If you present your ideas well, most readers will agree with you. However, some won’t, and they may have valid reasons for disagreeing. To earn their agreement, you have to think like they think. You have to address their criticisms. This is part of understanding your readers.
When writing, ask yourself, “What reasons will my readers have for disagreeing with me?”
I recommend that you list those reasons. Then, you have two strategies for addressing them. First, you can address those criticisms directly. For example, you might write, “While the argument can be made that . . . , in fact . . . .” Although this strategy works, you might seem as if you expect criticism (which you do) and are insecure about your ideas.
Second, you can revise, expand, and strengthen your arguments and rationale so that those criticisms are not possible. This is the more difficult, but more effective, strategy.