It’s no secret that Apple and Donald Trump have not gotten along very well so far in this election cycle, and now Apple co-founder Steve Wozniak is entering the fray. Wozniak is among over 140 other tech leaders who today have penned an open-letter to the presumptive republican nominee.

In the letter, the tech leaders just exactly why they believe Trump would be a disaster for innovation. They explain that his stances put him against the open exchange of ideas, free movement of people, and productive engagement with the outside world. Ultimately, the collection of tech powerhouses have no time for the “anger, bigotry, and fear” on which Trump campaigns:

We believe in an inclusive country that fosters opportunity, creativity and a level playing field. Donald Trump does not. He campaigns on anger, bigotry, fear of new ideas and new people, and a fundamental belief that America is weak and in decline. We have listened to Donald Trump over the past year and we have concluded: Trump would be a disaster for innovation. His vision stands against the open exchange of ideas, free movement of people, and productive engagement with the outside world that is critical to our economy — and that provide the foundation for innovation and growth.

The open-letter specifically targets Trump’s controversial immigration plan, pointing out that great ideas “come from all parts of society.” The tech leaders point to the fact that 40% of Fortune 500 companies were founded by immigrants or the child of an immigrant. “Donald Trump, meanwhile, traffics in ethnic and racial stereotypes, repeatedly insults women, and is openly hostile to immigration,” they write.

The coalition also points to the time Trump said he would look into “shutting down” parts of the internet amid security fears. Likewise, they point out how Trump and his campaign have revoked press credentials and threatened to punish those in the media who are critical of him.

Finally, they voice displeasure with the lack of policies that Trump actually lays out. “Donald Trump articulates few policies beyond erratic and contradictory pronouncements,” they write. “He risks distorting markets, reducing exports, and slowing job creation.”

Ultimately, Wozniak and company write that they “want a candidate who embraces the ideals that built America’s technology industry.” While they don’t go as far as to endorse a candidate, they make it clear that Trump is not who they’re looking for.

Apple and Trump’s battle stems from when Trump said that he will get Apple to “build their damn computers and things in this country.” He has also called for an all-out boycott on Apple products because of the company’s refusal to aid the FBI in unlocking the San Bernardino gunman’s iPhone, though he was then caught tweeting from an iPhone.

In March it was reported that Apple CEO Tim Cook was among a handful of technology executives who attended the American Enterprise Institute’s World Forum where the “main topic” was stopping Donald Trump. Apple then withheld financial and tech aid from the upcoming GOP convention.

Wozniak has independently voiced his displeasure with Trump before, telling TIME that he made him “cry out loud” and that he is a “very rude person.”

 You can read the full letter from Wozniak, Slack’s Stewart Butterfield, Yelp CEO Jeremy Stoppelman, Barry Diller, and over 100 others on Medium.

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