There are several things to it:
1. The longer you ride, the better it will feel until the discomfort disappears altogether. This is saddle time.
2. Poor fit on a bike is the number one reason for pain in the butt, numb hands, pain in shoulders and lower back, etc. Go to the LBS and spend the money for them to fit you right to the bike. Tons of little adjustment here and there make a world of difference.
3. Comfort in a particular seat has hardly anything to do with padding on it or "padded shorts", but mostly to do with the shape of the seat. There isn't a seat that fits all. The one that will fit one great will kill another. Unfortunately, it is trial and error.
4. It does take a good 4-8 weeks for your butt to get adjusted to a new saddle. That is assuming you are fitted right, you spend enough saddle time, and the saddle fits you well.
Start with a good and proper fit and work your way from there. It will fell better in time.
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Arguing with ignorant people is an exercise in futility. They will bring you down to their level and once there they will beat you with their overwhelming experience.