If it were in return for a tax break then they might even do it voluntarily. The key would be to get in while valuation is low.
Think of it like the original Bitcoin wallet, its value is $0 because none of those will ever be sold.
If dividends are involved it could matter but the government basically gets 20% of dividends already and extra 4% doesn't make a huge difference.
Returning to blocking stock buybacks as price manipulation and forcing businesses to give out dividends again would actually impact revenue in a meaningful way in contrast.
So this ends up being equivalent to taxes on both dividends and buybacks (and other economic participation like buyouts from mergers), except that no investor in particular has to pay the tax.