stop using first year math as your benchmark for pay. You do realize that there are pay raises every year, right?
Here is Republic as an example...
YR 1 - FO - $45*75*12= 40,500+10,000 bonus = 50,500**
YR 2 - FO - $51*75*12= 45,900+5,000 bonus = 50,900**
YR 3 - CA - $88*75*12= 79200+2,500 bonus = 81,700**
** these numbers assume pay at the minimum guarantee only. Most pilots I know are at 80+ hours a month. The pay above does not include perdiem which is around 10k.
This is regional pay at Republic. I used them as an example since they have a lot of domicile bases. Their bonus structure is on the low side. The pay at the majors gets really good, really quickly.