Disease? Is there anything inherently wrong with any of those things? If you find those actions disruptive in a specific scenario, then you should definitely ask them to stop. Making a general protest against all such actions, when they are really not as heinous as you make them out to be, doesn’t make sense.
In general, if you find specific actions disturbing in a social setting, the best tactic is to ask the person doing them directly to stop–even if it is a widespread issue that you think needs to be addressed on a larger scale. If you need to address it all over again with a different person, then so be it. If you really want to deal with the issue, that is really the only way (personal experience).