1. Not all *big* hospitals are swimming in money. Yes, some are others may be so on paper but have heavy current and predicted future debt burdens.
2. Nurses are employees of hospitals, and not every employer pays for workers to obtain advanced/higher education. Yes, many places do offer full and or partial tuition reimbursement, but that is more of a benefit not an absolute right.
3. Not all facilities will "loose" money under "Obamacare". Theory was that in accepting lower reimbursement rates from Medicare hospitals would reap those funds in back from the expanded pool of insured and those signed onto Medicaid. The places that are likely to be in trouble are in states where governors have refused to expand Medicaid coverage. This means places in those states are still going to loose funding, but may face difficulty in recouping that money as the potential pool of Medicaid patients will not increase. Low to middle income persons may suffer if states refused to opt into the healthcare exchanges, but IIRC the federal government will step in if that becomes a problem.
As for the balance of your post, wouldn't be too sure about not reaching "80%" of BSN nurses in some areas. Do not forget aside from undergraduate four year schools
there are ABSN/second degree programs that seem to be increasing every year. In many parts of the USA *both* programs are full to capacity with a surplus of applicants in often >2:1 ratios. This does not include the bridge programs that are being flooded not only with new (ADN and diploma) grads that cannot obtain an interview much less work without those four letters, but experienced RNs with similar backgrounds that are going for their BSN either by personal/professional choice, and or out of employer mandate.