Warren Buffet is a major abortion funder

Can you be in business and remain true to your Catholic morals?
YES. However, most Catholics don't realize the extent to which companies they patronize like McDonalds and Proctor and Gamble contribute huge sums of money to anti-family, Culture of Death agendas. There are some businesses based on the premise that Catholics are called to be salt and light in the marketplace. Some are successful, some aren't.
BOGO wines a wine importer who dedicated his business to raising awareness of Adult Stem Cells, has to close his business.
Catholic Home Loan donates a percentage of it's profit to the good pro-life or Catholic charity of the homebuyers' choice.
Sienna Group which provides wireless communications does the same.
So why would anyone want to participate in mutual funds like that of Warren Buffet whose Berkshire Hathaway contributes millions to the abortion industry. His stockholders met members of Operation Rescue at their latest meeting who explained this and several decided to dump their stock at the earliest opportunity.
Let you dollars work for the Catholic morality you believe in. Support good Catholic-run businesses, and let scoundrels like Buffet feel the pinch. It may lead to conversions.