They feel that it would infringe upon their ability to gamble freely.
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infringe
[ɪnˋfrɪndʒ]
違犯; 侵犯; 違反
This action infringed the constitution. 這種行為違反了憲法。
侵犯; 侵害[(+on/upon)]
Sorry to have infringed upon your property-rights. 對不起, 我侵犯了您的產權。