AFAIK, an H1B does not allow you to bring extended family as it does not give you permanent residence.
You're a lousy stinking liar. The employers of H1B vis holders can and do get their employees green cards and then green card holders can easily get citizenship. Furthermore HB visa holders are able to sponsor or spouses and children.
Employment Authorization for Certain H-4 Dependent Spouses
Certain H-4 dependent spouses of H-1B nonimmigrants can file Form I-765, Application for Employment Authorization, if the H-1B nonimmigrant
Source https://www.uscis.gov/working-in-the-united-states/temporary-workers/h-1b-specialty-occupations/employment-authorization-for-certain-h-4-dependent-spouses
AFAIK, an H1B does not allow you to bring extended family as it does not give you permanent residence.
H-1B, L-1 visa spouses: US to renew work permits automatically from January
Good news for spouses of H-1B and L-1 visa holders. The US Department of Homeland Security (DHS) has announced an automatic extension of the work permit renewal period for H-4 and L-2 visa holders, increasing it from 180 days to up to 540 days. This change is expected to benefit many, particularly Indians, who represent a large portion of these visa categories.
https://www.business-standard.com/finance/personal-finance/h-1b-l-1-visa-spouses-us-to-renew-your-work-permit-automatically-from-jan-124121200522_1.html