No need for everyone to assume the absolute worst.

No, we are not irresponsible people.
No, we are not planning on “walking away” from our current house and I’m offended by the assumption.
No, we are not planning to assume mortgage payments on two houses.
No, we are not buying a new house before we sell our existing house. But no need to sell our house if we can’t get a loan for another house.
No, we don’t think the government should bail us or anyone else out of this situation.
No, we don’t think that renting is a wise financial choice in our tax bracket.
No, we don’t want to buy a house that our family will outgrow in another 3-5 years. We’re buying for the long haul this time.
No, we don’t think that pouring absolutely every penny we owe into our home is smart. We value maintaining a substantial emergency fund, diversified portfolio, etc.