Chris Larsen is not the first person to donate to a political rival of the US's president-elect, so this is nothing, especially if he and Trump are not direct foes, I see no reason for vendetta. Also, the US is not a Banana republic, the president may decide on a thing and the court overturns it, he doesn't have absolute power. Lastly, the CBDC is being delayed not because it is centralised but the negative impact it may have on the US financial services. XRP is different.
Money talks. So if Mr. Larson is able to convince the incoming administration with his money, Ripple (the company) and XRP will be riding off into the sunset. I understand the President of the US doesn't have absolute power. But I remember Trump himself saying that he will be a "dictator on day one". With Republicans gaining control of both chambers of Congress (House + Senate) and the Supreme Court being dominated by conservatists, anything's possible.
If Trump dislikes Ripple for any reason, we should expect a huge blow in XRP's market prices during his administration. What's happening now is only a result of hype. I mean, what use cases XRP has compared to other coins? None. What's keeping it alive are the bank partnerships. But even banks might not use XRP in the future if they use RippleNet (a separate solution from the main XRP Ledger). Centralization can't prevail in the crypto/Blockchain industry. Not now, nor in another century. Why do you think nothing can beat BTC?
