There is no one answer to this question - different people may have different opinions on why they think women deserve less future. Some might say that it's because women are not as capable as men, or that they don't work as hard. Others might believe that the world is still very much geared towards men, and that women have a long way to go before they catch up.
Whatever the reason, it's important to remember that everyone is entitled to their own opinion. Just because someone believes that women deserve less future doesn't mean that they're right - and vice versa. Ultimately, only time will tell whether or not women truly do deserve less future than their male counterparts.