Making sure that dividends are taxed like other types of income could make sense - not sure how this currently works in the US? Removing dividends all-together?

Making sure that dividends are taxed like other types of income could make sense - not sure how this currently works in the US? Removing dividends all-together? That doesn't seem like a good idea, because why would anyone invest in a business, if there is no potential for future cash flows arising from it? Even companies that don't generally pay dividends have value, because they could. So removing dividends would also require another mechanism to incentivise investing in businesses in the first place?