For example, when some people in high positions enjoy privileges, politicians will defend them by talking about their contributions, and the topic shifts from privileges to contributions. Similarly, when a few bad people emerge from a certain ethnic group, politicians will constantly emphasize these few bad people to negate the entire ethnic group and call for action against the group. The most crucial factors should be whether contributions and privileges are commensurate, and the degree of correlation between the ethnic group and individual events. But nobody discusses this.
Even when I'm on one side of the argument, it's just as frustrating to hear my own side just move on to their next pre-written question/response instead of engaging with the underlying issues. I want substantive debate and discussion and possibly consensus, but that's sadly not the reality in most cases of import.
I'm surprised there isn't a term for doing that.
Let's take Bernie Sanders, because he's well-known in Vermont for being happy to go off-script and actually talk to people. During my only personal conversation with him, he was delighted to discover that a small, local event actually served excellent chicken. (Apparently politicians eat a lot of rubbery chicken.)
But at that same event, Bernie was approached by a woman asking some conspiracy-tinged question. And he very gracefully deflected and changed the topic. I think that just about anyone who interacts with the public is likely to pick up some version of this skill eventually.