Sadly, according to a Reddit post, it isn't available on the Chrome web store any longer. However, Word Replacer II can do the same thing with some configuration.
When a consumer buys from a company, they financially support it in return for satisfactory products or services. If the company doesn't provide a good enough experience to the consumer (no refunds, too expensive, flimsy material, poor sanitation, rude staff, denial of service to a particular group, etc.), the consumer will find a more reliable company to buy from. If a company loses enough of its market, it can no longer support itself. Boycotts are the most effective way of forcing a company to change its practices to better fit their customers.