Why wouldn’t you be? The way that people react these days is so all over the place that it’s a no win situation unless you’re talking about financial/economic policy.
That's not to say that you cannot convince people of new attitudes, so long as you appeal to their already held belief systems (LGBT rights, for example, animal cruelty, etc), but you cannot ram your beliefs down someone else by force and have that accepted and not have a reaction to it.