Earlier quoted context omitted.
There are tons of incentives for first time home buyers! They just aren't really marketed. You can take out a mortgage against your own 401(k) for your first home. You can use a VERY low down payment loan (like 0% in some cases) for your first home. Tax rates are lower in many places for homeowners than renters -- in Boston and Somerville MA, this comes out to a pretty substantial tax credit.
All of those incentives just increase demand for housing and bid up prices. Supply needs fixing.
If the government wanted to help buyers, they could just give them cash and/or increase supply of housing in the in demand areas.