Do I need to liquidate my AutoWealth investments in Singapore if I become a US tax resident?

I have some money invested in AutoWealth Starter portfolio which has a significant share in US ETFs. The custodian account holder for AutoWealth is Saxo Capital. In Saxo Capital's website states that it does not cater for US tax residents.

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Now, most probably, I will be moving to the US to start a job. I will be paying income taxes to IRS (US version of IRAS) which means I will become a US tax resident. Does that mean I will have to sell all my US-based investments products?

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Is there any way around it? Did anyone encountered such a scenario before? Thank you in advance for your replies.