Sort:  

How do you plan on resolving it?

simple, empty the whitelist

What does this mean for voting on delegator's posts? That's the main issue with your scheme. The APR will fix itself after the hardfork where your front-running ROI will be rendered useless.

I did not see the problem to vote for my delegators' posts, but downvoting them is not fair to them.

That's probably why you're not getting what's wrong with your scheme. People are supposed to be curated for the content, effort and/or other contributions to the ecosystem. Not just because they give you delegations you can upvote them so they can circumvent having to post 10x per day to self-vote all those posts and not share their upvote mana with other unique users on the platform.

What you and your delegators are doing are not fair to the rest of stakeholders and regular users on the chain according to the blockchain rules and consensus of how curation should work.

that is just your opinion, but downvoting is not necessary to resolve this.

It's not just my opinion and downvotes will be used to resolve this as that's what they're there for among many other things.