It's utterly silly to poo-poo second hand houses! What an odd thing to say. That's almost as daft as refusing to drive down a road because other cars have driven down it!
I love old houses actually, but although they can look nice and cool etc, they can be expensive to heat and maintain. And although it's true that some new build are poor quality, some new build are ok. Nothing is built or made like it used to be though, and houses are no exception. We have a number of 500 to 800 year old houses in our town, I don't see the 300 newbuild homes that run in rows of terraces lasting that long somehow.
And I know several builders who worked for a few big housebuilders over the past decade or so, and they said they are told to build as many homes as possible, as quickly as possible, in the smallest space possible. With the cheapest materials. I know 4 different people who bought newbuild in the past 2 years; 3 in a tiny terrace in a row that was thrown up in no time at all, and one who lives in a 4 bed detached 'executive' home with a big garden that cost triple what the others cost.
Apart from the usual issues, the more expensive one is fine, and my friend is happy with it. But the other 3 say they hear next door when they flush the loo, when they sneeze, and when they snore. And the gardens are tiny, (front and back,) the walls are already going damp, and the bathroom and kitchen have been riddled with flaws. In addition, some of the homes have been sold to private landlords and they have transient private tenants in there, and about 1 in 5 are social housing. They didn't know this when they bought, and so they paid £200K for a home next to a family on benefits with between 3 and 6 kids. (Their words, not mine...)
When all is said and done, I think the best age house to buy is 1950's to 1980's. But if you are prepared to (or able to) pay top dollar, you can get a decent new build yes. It's a shame to say they are nasty and soulless, but I wouldn't worry; I am sure the houses of the 1940's and 1950's had the same thing said about them when lots of council houses were built.
Remember the song Little Boxes - Joan Baez was it? From the 1960's? So even then some people felt lots of similar looking houses were bland and soulless...