If you're about to tell someone "I don't see why, but <opinion>", then STOP. Take a step back. Ask yourself why you feel qualified to cast an opinion about something you've *just* indicated you don't understand (yet), and what it is going to add to the conversation.

Chances are that you will either
a) talk over someone who *does* understand it,
b) exhaust the people who have to deal with this topic every day, or
c) spread misinformation and gut feelings as fact.

Especially the 'default dudes' (ie. those who are many/all of cis, white, male, abled, and well-paid) need to watch this more closely, since you're especially likely to be just *assuming* that your opinion will add value to the conversation.