It’s hard not to be argumentative or offensive because, when you disagree with anybody, the tendency is for people to be offended.
When you talk about being argumentative, that is a negative description of things. But giving solid biblical arguments is what we are called to do.
Now, to make a sound argument to support the truth claims of a position is not necessarily to be argumentative. Argumentativism describes a hostile, mean spirit.
So, one doesn’t have to be argumentative to make sound arguments, and I would encourage people to make clear and biblical arguments for the truth.