Stand by your decision!!!
Who do they think they are, expecting you and your family to risk not only your lives but that of your precious new baby, too? I'd absolutely tell them NO!!!
If they are that impatient to see your baby, then tell them SKYPE and ZOOM work just fine, or they'll have to rely on you sending them camera pics (just to be awkward and make them wait longer).
Anyway, apart from them seeing your baby, wouldn't it just be lovely for you and your wife to get to know your little one first, and to be able to get into as much of a routine as possible before others visit and try to take over?!!
Good luck and the best of health to you, your wife and beautiful baby!