-1 from me and all of my high age GBs (I'm in LMA, have GBs of advanced ages).
Everybody has the right to play the game as they please - as long as it is within the rules.
If someone in EMA for example wants to build an Arc, that's their right to choose to do so. I have no problem with that.
The only reason I would have a problem with that is if they were using push accounts to level it or get the goods for it - but in that case they will be caught and dealt with appropriately.
By preventing new players from building advanced GBs you'll creating a massive imbalance between new and established players, not resolving anything.
Don't fix things that aren't broken. If you want a high level GB, find someone or a guild who is willing to help you with the goods for a fair exchange, rather than going into a "if I can't have it, nobody can have it" mindset.