You should check with your administrator and see if you can rollover all/part of your 401k to a new IRA at a custodian where you have more choices.
Specifically, be sure and get a specific response to the ability to rollover 1) your deferred salary i.e. your contributon; and/or 2) your employers contribution.
To me, the most interesting exception being the fact that the law only applies to your pre-tax salary deferrals. You CAN rollover (or otherwise withdraw) employer contributions, or employee (after-tax or rollover) contributions.
Be sure to find out if there are any required taxes or penalties.
In summary, you should be able to rollover at least a portion of your 401k to a custodian that gives you more choices. It may be a traditional brokerage such as Schwab/Fidelity/Morgan, or my favorite a Self Directed IRA.
Regardless be sure they address the 2 different ‘buckets’ of contributions as every plan has its own unique rules.